I currently have a problem calibrating monitors on centos7. Using gnome or kde, I cannot properly use the color settings to apply a newly created ICC profile. The devices tab has not display listed (only a printer installed).
After some reading I found that colord uses xrandr to detect displays and they should appear with the following call:
$ colormgr get-devices
This does not bring any display devices (only the printer mentioned earlier). When I use xrandr I properly get my list of displays:
$ xrandr Screen 0: minimum 8 x 8, current 1920 x 1200, maximum 16384 x 16384 DVI-I-0 disconnected (normal left inverted right x axis y axis) DVI-I-1 disconnected (normal left inverted right x axis y axis) DP-0 disconnected (normal left inverted right x axis y axis) DP-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 518mm x 324mm 1920x1200 59.95*+ 1920x1080 60.00 1680x1050 59.95 1600x1200 60.00 1280x1024 60.02 1280x960 60.00 1024x768 60.00 800x600 60.32 640x480 59.94
Does anyone knows why this problem occurs and how I could work around it ?
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Answer
We’ve updated to cent7.4 recently and colorgr seems to bring the correct result now.